摘要
以某DN400mm中压铸铁燃气管道改造工程为例,详细介绍了以废旧的DN400mm铸铁燃气管道为套管,采用U-HDPE修复旧管道技术将DN390mm的PE燃气管道插入套管的施工方法。
Taking a DN400 medium-pressure cast-iron gas-pipeline renovation project as an example,this paper introduces in detail the construction methods that selects DN400 cast-iron gas pipeline as the sleeve and inserts De390 PE gas pipeline into the sleeve by using U-HDPE old pipeline repairing technology.
出处
《科技情报开发与经济》
2011年第34期224-226,共3页
Sci-Tech Information Development & Economy
